2 · en
Short, simple sentences with “variable”, suitable for children and primary/elementary school, with common expressions and related words. You'll also find examples for middle and high school.
The appearance of the avioncopter around 1980 added a new variable to the old models: speed. For the first time, the construction of a helicopter with turbojets was attempted.
Animals whose body temperature changes with that of the environment are called poikilotherms (from poikilos: variable; thermos: temperature). These animals tend to reduce their activity or hibernate when cold weather arrives.
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